diff --git a/.github/workflows/github.yml b/.github/workflows/github.yml
index c72c6e206..a08884d2f 100644
--- a/.github/workflows/github.yml
+++ b/.github/workflows/github.yml
@@ -701,7 +701,7 @@ jobs:
             python3 CI/validate_json.py
 
         - name: Validate Markdown
-          uses: DavidAnson/markdownlint-cli2-action@v20
+          uses: DavidAnson/markdownlint-cli2-action@v21
           with:
             config: 'CI/example.markdownlint-cli2.jsonc'
             globs: '**/*.md'